Shapes 4 8 – Simple Diagramming App

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Looking for an easy way to plan your new kitchen? Try an easy-to-use online kitchen planner like the RoomSketcher App. Create kitchen layouts and floor plans, try different fixtures, finishes and furniture, and see your kitchen design ideas in 3D!

  1. Free Diagramming Application
  2. Shapes 4 8 – Simple Diagramming Apps

Whether you are planning a new kitchen, a kitchen remodel, or just a quick refresh, RoomSketcher makes it easy for you to create your kitchen design. Unlike other kitchen planners, there’s no CAD experience necessary. Get started planning your kitchen straight away with this easy-to-use kitchen planner.

Shapes is an elegant Diagramming app for Mac OS X, that is both simple and powerful. Shapes gives you all of the most important features you need in a Diagramming tool without all the extra cruft, at an affordable price. Download Shapes 4 for macOS 10.8 or later and enjoy it on your Mac. ‎Shapes is a simple, elegant diagramming and vector graphics app. Shapes gives you all of the most important features you need in a diagramming and vector design tool without all the extra cruft, at an affordable price. Spherical 4 Stages PowerPoint Diagram. Creative 3D Box Diagram Template for PowerPoint. It’s Simple and Easy to Use. Save hundreds of hours of manual work, be more productive and impress your audience with visually appealing slides that are 100% editable. Different Types of Shapes. Shapes can be classified into open and closed shapes. Closed geometric shapes can further be put into two broad categories, namely two-dimensional and three-dimensional shapes. Here’s a list of 2-D or two-dimensional shapes with their names and pictures. Peg Puzzle 2 - Shape Puzzles for Kids - App Gameplay Vi. کارتون آموزش زبان کودکان Super Simple Songs - The Shape Song #2 Super Simple.

” A great program that is easy to learn and use. ”
Marthe Høyer-Andreassen, Interior Designer

Plan Your Kitchen Online

Planning a kitchen can be challenging. You want your kitchen design to be functional and attractive, but also affordable. Because a kitchen can be one of the most expensive rooms in your home to renovate, you need to create a good plan that you know will work. One of the best ways to do that is with an online kitchen planner.

RoomSketcher is an easy-to-use floor plan and home design app that you can use as a kitchen planner to design your kitchen. Create a floor plan of your kitchen, try different layouts, and visualize with different materials for the walls, floor, countertops, and cabinets – all in one easy-to-use app.

Kitchen Planning Made Easy

Create your kitchen design using the RoomSketcher App on your computer or tablet. Draw your floor plan, choose your furnishings, and see your kitchen design in 3D – it’s that easy!

Draw Your Floor Plan
Draw a floor plan of your kitchen in minutes, using simple drag and drop drawing tools. Simply click and drag your cursor to draw or move walls. Select windows and doors from the product library and just drag them into place. Built-in measurement tools make it easy to create an accurate floor plan.
Furnish Your Kitchen
Select kitchen cabinets, appliances, fixtures, and more, and simply drag them into place. Resize items easily, experiment with different finishes, and save your favorite design options to review and compare.
See Your Kitchen in 3D
Use the camera to take instant Snapshots of your kitchen design in 3D. Experience a 3D walkthrough of your kitchen design with our Live 3D feature. When your design is ready, create high-quality 3D Floor Plans, 3D Photos, and 360 Views to show your ideas.

Free Diagramming Application

” With my RoomSketcher floor plan, my designer from the cabinet company was able to create a kitchen design for me through email exchanges (no need to come to the house). ”
Nahomie Jeune, Homeowner

Create Floor Plans and Images of Your Kitchen

RoomSketcher makes it easy to create floor plans and 3D images of your kitchen design – like a pro! Here are just a few examples of the types of floor plans and images you can create:

2D Kitchen Floor Plans
2D Floor Plans are essential for kitchen planning. They help you to layout your kitchen correctly, to know what will fit, and to get more accurate estimates. Show measurements, the room size in square meters and feet, the locations of appliances, and more.

3D Kitchen Floor Plans
With RoomSketcher, you can create a 3D Floor Plan of your kitchen at the click of a button! 3D Floor Plans are ideal for kitchen planning because they help you to visualize your whole room including cabinets, appliances, materials and more.

3D Photos
Create high-quality 3D Photos of your kitchen design from your camera snapshots. See how your kitchen design will look including colors, textures and materials. They are the perfect way to see and share your design ideas!

360 Views
Create stunning 360 Views of your kitchen design instantly. View the entire room as if you are standing right there!

Get Started on Your Kitchen Design

With RoomSketcher, every user can use the RoomSketcher App for free so that you can start your kitchen planning straight away. Just draw your floor plan, furnish and decorate it, and see your design in 3D – it’s that easy!

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Get started on your kitchen today with this easy-to-use kitchen planner!

” RoomSketcher helped us build the home of our dreams – we drew our floor plans online, showed them to our architect and could plan out everything from room sizes to furniture. ”
Andreas Johnsen, Homeowner

For a description of simple non-hierarchical list and table models, see the Model/View Programming overview.

Qt's model/view architecture provides a standard way for views to manipulate information in a data source, using an abstract model of the data to simplify and standardize the way it is accessed. Simple models represent data as a table of items, and allow views to access this data via an index-based system. More generally, models can be used to represent data in the form of a tree structure by allowing each item to act as a parent to a table of child items.

Before attempting to implement a tree model, it is worth considering whether the data is supplied by an external source, or whether it is going to be maintained within the model itself. In this example, we will implement an internal structure to hold data rather than discuss how to package data from an external source.

Shapes 4 8 – Simple Diagramming App

Design and Concepts

The data structure that we use to represent the structure of the data takes the form of a tree built from TreeItem objects. Each TreeItem represents an item in a tree view, and contains several columns of data.

Simple Tree Model Structure

The data is stored internally in the model using TreeItem objects that are linked together in a pointer-based tree structure. Generally, each TreeItem has a parent item, and can have a number of child items. However, the root item in the tree structure has no parent item and it is never referenced outside the model.

Each TreeItem contains information about its place in the tree structure; it can return its parent item and its row number. Having this information readily available makes implementing the model easier.

Since each item in a tree view usually contains several columns of data (a title and a summary in this example), it is natural to store this information in each item. For simplicity, we will use a list of QVariant objects to store the data for each column in the item.

The use of a pointer-based tree structure means that, when passing a model index to a view, we can record the address of the corresponding item in the index (see QAbstractItemModel::createIndex()) and retrieve it later with QModelIndex::internalPointer(). This makes writing the model easier and ensures that all model indexes that refer to the same item have the same internal data pointer.

With the appropriate data structure in place, we can create a tree model with a minimal amount of extra code to supply model indexes and data to other components.

TreeItem Class Definition

The TreeItem class is defined as follows:

The class is a basic C++ class. It does not inherit from QObject or provide signals and slots. It is used to hold a list of QVariants, containing column data, and information about its position in the tree structure. The functions provide the following features:

  • The appendChildItem() is used to add data when the model is first constructed and is not used during normal use.
  • The child() and childCount() functions allow the model to obtain information about any child items.
  • Information about the number of columns associated with the item is provided by columnCount(), and the data in each column can be obtained with the data() function.
  • The row() and parent() functions are used to obtain the item's row number and parent item.

The parent item and column data are stored in the parentItem and itemData private member variables. The childItems variable contains a list of pointers to the item's own child items.

TreeItem Class Implementation

The constructor is only used to record the item's parent and the data associated with each column.

A pointer to each of the child items belonging to this item will be stored in the childItems private member variable. When the class's destructor is called, it must delete each of these to ensure that their memory is reused:

Since each of the child items are constructed when the model is initially populated with data, the function to add child items is straightforward:

Each item is able to return any of its child items when given a suitable row number. For example, in the above diagram, the item marked with the letter 'A' corresponds to the child of the root item with row = 0, the 'B' item is a child of the 'A' item with row = 1, and the 'C' item is a child of the root item with row = 1.

The child() function returns the child that corresponds to the specified row number in the item's list of child items:

Shapes 4 8 – Simple Diagramming Apps

The number of child items held can be found with childCount():

The TreeModel uses this function to determine the number of rows that exist for a given parent item.

The row() function reports the item's location within its parent's list of items:

Note that, although the root item (with no parent item) is automatically assigned a row number of 0, this information is never used by the model.

The number of columns of data in the item is trivially returned by the columnCount() function.

Column data is returned by the data() function, taking advantage of QList's ability to provide sensible default values if the column number is out of range:

The item's parent is found with parent():

Note that, since the root item in the model will not have a parent, this function will return zero in that case. We need to ensure that the model handles this case correctly when we implement the TreeModel::parent() function.

TreeModel Class Definition

The TreeModel class is defined as follows:

Diagramming

This class is similar to most other subclasses of QAbstractItemModel that provide read-only models. Only the form of the constructor and the setupModelData() function are specific to this model. In addition, we provide a destructor to clean up when the model is destroyed.

TreeModel Class Implementation

For simplicity, the model does not allow its data to be edited. As a result, the constructor takes an argument containing the data that the model will share with views and delegates:

It is up to the constructor to create a root item for the model. This item only contains vertical header data for convenience. We also use it to reference the internal data structure that contains the model data, and it is used to represent an imaginary parent of top-level items in the model.

The model's internal data structure is populated with items by the setupModelData() function. We will examine this function separately at the end of this document.

The destructor ensures that the root item and all of its descendants are deleted when the model is destroyed:

Since we cannot add data to the model after it is constructed and set up, this simplifies the way that the internal tree of items is managed.

Models must implement an index() function to provide indexes for views and delegates to use when accessing data. Indexes are created for other components when they are referenced by their row and column numbers, and their parent model index. If an invalid model index is specified as the parent, it is up to the model to return an index that corresponds to a top-level item in the model.

When supplied with a model index, we first check whether it is valid. If it is not, we assume that a top-level item is being referred to; otherwise, we obtain the data pointer from the model index with its internalPointer() function and use it to reference a TreeItem object. Note that all the model indexes that we construct will contain a pointer to an existing TreeItem, so we can guarantee that any valid model indexes that we receive will contain a valid data pointer.

Since the row and column arguments to this function refer to a child item of the corresponding parent item, we obtain the item using the TreeItem::child() function. The createIndex() function is used to create a model index to be returned. We specify the row and column numbers, and a pointer to the item itself. The model index can be used later to obtain the item's data.

The way that the TreeItem objects are defined makes writing the parent() function easy:

We only need to ensure that we never return a model index corresponding to the root item. To be consistent with the way that the index() function is implemented, we return an invalid model index for the parent of any top-level items in the model.

When creating a model index to return, we must specify the row and column numbers of the parent item within its own parent. We can easily discover the row number with the TreeItem::row() function, but we follow a convention of specifying 0 as the column number of the parent. The model index is created with createIndex() in the same way as in the index() function.

The rowCount() function simply returns the number of child items for the TreeItem that corresponds to a given model index, or the number of top-level items if an invalid index is specified:

Since each item manages its own column data, the columnCount() function has to call the item's own columnCount() function to determine how many columns are present for a given model index. As with the rowCount() function, if an invalid model index is specified, the number of columns returned is determined from the root item:

Data is obtained from the model via data(). Since the item manages its own columns, we need to use the column number to retrieve the data with the TreeItem::data() function:

Note that we only support the DisplayRole in this implementation, and we also return invalid QVariant objects for invalid model indexes.

We use the flags() function to ensure that views know that the model is read-only:

The headerData() function returns data that we conveniently stored in the root item:

This information could have been supplied in a different way: either specified in the constructor, or hard coded into the headerData() function.

Setting Up the Data in the Model

We use the setupModelData() function to set up the initial data in the model. This function parses a text file, extracting strings of text to use in the model, and creates item objects that record both the data and the overall model structure. Naturally, this function works in a way that is very specific to this model. We provide the following description of its behavior, and refer the reader to the example code itself for more information.

We begin with a text file in the following format:

We process the text file with the following two rules:

  • For each pair of strings on each line, create an item (or node) in a tree structure, and place each string in a column of data in the item.
  • When the first string on a line is indented with respect to the first string on the previous line, make the item a child of the previous item created.

To ensure that the model works correctly, it is only necessary to create instances of TreeItem with the correct data and parent item.

Files:

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